Home / 103,629.17-155,428.29-28,741.50

Finding the Fourth Proportional to 103,629.17, 155,428.29 and 28,741.50

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Solution

The fourth proportional to 103,629.17, 155,428.29 and 28,741.50 is: 43,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.17 : 155,428.29 = 28,741.50 : x
  2. Step 2: Convert to fraction form
    103,629.17/155,428.29 = 28,741.50/x
  3. Step 3: Cross multiply
    103,629.17x = 155,428.29 × 28,741.50
  4. Step 4: Simplify right side
    103,629.17x = 4,467,242,197.04
  5. Step 5: Solve for x
    x = 4,467,242,197.04/103,629.17
  6. Step 6: Final answer
    x = 43,107.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.